David Simpson

David Simpson: Email & Phone Number

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Associate General Counsel at U.S. Energy Development Corporation|United States

Position:

Associate General Counsel at U.S. Energy Development Corporation

Location:

United States

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Last updated: 2026-09-15
Updated: 2026-09-15

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Work Experience 48 years

Associate General Counsel at U.S. Energy Development Corporation

Jun 2026 - Current

Vice President, Legal E&P/Technology at Pioneer Natural Resources Company

Jan 2011 - Jan 2019

Vice President, International Commercial/Legal at Pioneer Natural Resources Company

Jan 2008 - Jan 2011

Vice President, International Law at Pioneer Natural Resources Company

Jan 2005 - Jan 2008

International Counsel at Pioneer Natural Resources Company

Jan 2003 - Jan 2005

Senior Attorney at Pioneer Natural Resources Company

Jan 1997 - Jan 2003

Associate General Counsel and Supervisor - New Ventures (Mesa Petroleum) at Pioneer Natural Resources Company

Jan 1996 - Jan 1997

Senior Counsel (Mesa Petroleum) at Pioneer Natural Resources Company

Jan 1988 - Jan 1996

Attorney at Watson & McKenzie, P.C (now Oklahoma City office of Hall, Estill)

Jan 1984 - Jan 1988

Exploration Geologist at Terra Resources, Inc.; Champlin Petroleum Company and Woods Petroleum Corp.

Jan 1978 - Jan 1984

David Simpson started working in 1978, then the employee has changed 3 companies and 9 jobs. On average, David Simpson works for one company for 4 years 2 months.

David holds Attorney, Board Certified in Oil, Gas and Mineral Law, and Member certifications.

Education

Bachelor of Science - BS at Texas A&M University

Master of Science - MS at Oklahoma State University

Doctor of Law - JD (with honors) at Oklahoma City University School of Law

Bachelor of Science - BS at University of Missouri-Columbia

Bachelor of Arts - BA at University of Missouri-Columbia

David Simpson Namesakes

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David Simpson
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David Simpson
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